JRC JSS-2150 - Page 195

Specifications
9-15
(3.4) Indication for RMC sentence
MI Description Device
Operating state Quality
Positioning Quality Valid Invalid
A Autonomous GPS
GPS STD ●
GLONASS
GL
STD
●
Galileo
GA
STD
●
Other
OTH
STD
●
D Differential GPS
GPS DGPS ●
GLONASS
GL DGL ●
Galileo
GA DGA ●
Other
OTH DOTH ●
E Estimated (dead reckoning) mode GPS
GPS EST ●
GLONASS
GL
EST
●
Galileo
GA
EST
●
Other
OTH
EST
●
F Float Real Time Kinematic GPS
GPS FRTK ●
GLONASS
GL
FRTK
●
Galileo
GA
FRTK
●
Other
OTH
FRTK
●
M Manual input mode GPS
GPS MAN ●
GLONASS
GL
MAN
●
Galileo
GA
MAN
●
Other
OTH
MAN
●
N No fix GPS
GPS INVALID ●
GLONASS
GL
INVALID
●
Galileo
GA
INVALID
●
Other
OTH
INVALID
●
P Precise Positioning Service GPS
GPS PREC ●
GLONASS
GL
PREC
●
Galileo
GA
PREC
●
Other
OTH
PREC
●
R Real Time Kinematic GPS
GPS RTK ●
GLONASS
GL
RTK
●
Galileo
GA
RTK
●
Other
OTH
RTK
●
S Simulator mode GPS
GPS SIM ●
GLONASS
GL
SIM
●
Galileo
GA
SIM
●
Other
OTH
SIM
●
When receiving the RMC sentence, and if the Status in that sentence is A (Data valid) and the
Navigational status is S (Safe), the quality type is checked using the MI (Mode Indicator) as
mentioned in the table above.
- If the quality is valid, the operating state is indicated with the position and time information.
- If the quality is invalid, or if the Status is V (Data invalid) or the Navigational status is C
(Caution), U (Unsafe) or V (Not valid), the operating state decided by the Quality Indicator,
Status or Mode indicator of the receiving highest priority sentence (GGA> GNS> GLL> RMC)
is displayed on the screen.
- See 5.2 for method to display the quality information on the regular screen.
Note